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Boada, L.D, Zumbado, M., Henríquez-Hernández, L.A, Almeida-González, M., álvarez-León, E.E., Serra-Majem, L. and Luzardo, O.P (2012) Complex organochlorine pesticide mixtures as determinant factor for breast cancer risk: A population-based case-control study in the Canary Islands (Spain). Environmental Health, 11, 1-9.

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• TITLE: Protein phosphorylation pathways disruption by pesticides

  AUTHORS: Gladis Magnarelli, Teresa Fonovich

  KEYWORDS: Protein Phosphorylation; Organochlorine Pesticides; Organophosphate Pesticides; Kinases

  JOURNAL NAME: Advances in Biological Chemistry, Vol.3 No.5, October 24, 2013

  ABSTRACT: Phosphosites in the human proteome represent an excellent source of potential biomarkers of pesticide toxicity. In fact, experimental animal models as well as in vitro studies have revealed phosphorylation disruption associated to metabolic regulation, hormone signaling, neuronal function and differentiation, cell survival and death. Due to their estrogen-mimicking ability, pesticides are considered as prime etiological suspects of increasing tumor incidence. Evidences of alterations in the signal transduction pathways involved in the tumor progression stage of pesticides were also provided. Despite progress in understanding the effect of pesticides on the human phosphorproteome and their health outcomes, it remains a complex issue to be studied. By now, the potential impact of pesticides in epigenetic phosphorylation pathways remains poorly explored. In addition, studies involving pesticides mixtures effects are needed. This review updates and provides a comprehensive discussion on the molecular and biochemical events underlying protein phosphorylation pathway disruption caused by pesticides most frequently detected in human tissues and fluids, such as organochlorine pesticides and organophosphates. The link between epidemiological studies and experimental approaches is also considered. Future challenges, such as micro-array phosphoproteome studies to complement gene expression arrays to understand the mechanisms involved in pesticide toxicology are briefly discussed.